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Caption: Figure 3.
Normalized redshift probability density distributions for CEERS-DSFG-1 from the different SED fittings. The broad solid light blue distribution centered at z ∼ 7.7 comes from the (sub)millimeter wavelength constraints using MMPZ (Casey 2020). The fits to the JWST photometry alone from EAZY (orange) and CIGALE (red) are also very uncertain and show nonnegligible probabilities at several very different redshift ranges. On the other hand, the joint CIGALE fit to the NIRCam and the (sub)millimeter data results in a narrow distribution, constraining the redshift of CEERS-DSFG-1 at ﹩z={5.09}_{-0.72}^{+0.62}﹩. Finally, to illustrate the impact of preflight NIRCam calibrations on the redshifts constraints, we also show the results from an EAZY fit to previous reductions of the NIRCam imaging (cyan line), which pushed the redshift constraints at z > 15.
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© 2023. The Author(s). Published by the American Astronomical Society.
